Top 10: Fraud Detection Tools

In 2026, the telco industry is no longer fighting traditional scammers but sophisticated agentic AI bots and deepfake audio streams.

As networks transition to 5G-Advanced, the sheer volume of data and the speed of attacks require automated tools for effective fraud detection at speed.

This Top 10 list highlights the vendors leading the charge in automated network security. These firms have moved beyond simple rules to embrace predictive modelling and network-embedded intelligence.

These companies represent the pinnacle of automated resilience in an increasingly volatile digital landscape where trust is the ultimate currency.

10. Huawei: 5.5G Intelligent Security

CEO: Ren Zhengfei
Founded: 1987
Location: Shenzhen, China

Huawei remains at the forefront of automated security by integrating intelligence directly into the 5.5G infrastructure.

Their solutions use Integrated Sensing and Communication (ISAC) to turn the network into a vast array of sensors. This allows for the automated detection of localised physical tampering and rogue base station interference at the edge.

By automating response protocols within the radio layer, Huawei ensures that high-density urban environments are protected from sophisticated signal-level attacks without requiring the constant manual oversight from network technicians.

9. Zumigo: Assure Insights

CEO: Chirag Bakshi
Founded: 2008
Location: San Jose, US

Zumigo automates the critical bridge between mobile network data and enterprise security.

Their Assure Insights platform provides automated real-time verification of subscriber location and device identity, which is essential for preventing account takeovers and synthetic identity fraud.

By turning raw telco signals into automated authentication checkpoints, Zumigo allows operators to monetise their data while providing banks and retailers with frictionless, high-assurance security.

Their focus on automated Identity-as-a-Service (IaaS) ensures that security remains agile in a fast-moving, digital-first economy.

8. TNS (Transaction Network Services): Call Guardian

CEO: Mike Keegan
Founded: 1990
Location: Reston, US

TNS is a cornerstone of automated voice security, particularly in North America.

Their Call Guardian platform automates the complex task of reputation scoring for billions of calls across global networks.

By utilising big data analytics and machine learning, TNS identifies robocalls and spoofing attempts in real time, effectively sanitising the voice channel.

This automation reduces network congestion caused by fraudulent traffic and helps operators comply with stringent regulatory requirements like STIR/SHAKEN, ultimately restoring subscriber confidence in the telephone.

7. BICS: FraudGuard (Global Interconnect)

CEO: Seckin Arikan
Founded: 1997
Location: Brussels, Belgium

BICS has a unique position in the global roaming ecosystem of providing automated, crowdsourced fraud prevention.

Their FraudGuard platform monitors international signalling traffic for anomalies, such as International Revenue Share Fraud (IRSF). The system is designed to trigger automated blocks across its vast partner network as soon as a malicious pattern is detected in one region.

This rapid, automated global response prevents fraudsters from exploiting the latency of traditional manual reporting, saving operators millions of dollars in uncollectable interconnect charges every year.

6. Enea: Adaptive Messaging Firewall

CEO: Teemu Salmi
Founded: 1968
Location: Stockholm, Sweden

Enea provides the automated intelligence needed to secure the messaging ecosystem from smishing and grey route traffic.

Their Adaptive Messaging Firewall uses AI-driven content inspection to automatically flag and block malicious links and fraudulent SMS/RCS campaigns at the gateway.

By automating the classification of high-volume traffic, Enea ensures that mobile users remain protected without introducing significant latency.

Their leadership in edge-based security automation makes them a vital partner for operators aiming to protect their brand reputation in 2026.

5. Nokia: NetGuard Security Center (SaaS)

CEO: Justin Hotard
Founded: 1865
Location: Espoo, Finland

Nokia’s NetGuard Security Center represents the standard for automated, SaaS-based network security.

By integrating fraud detection into the Service Management and Orchestration (SMO) layer, Nokia enables operators to automate security policies across multivendor 5G environments.

This is particularly crucial for network slicing, where different slices require automated, independent security postures.

Nokia’s approach allows for the automated monitoring of cloud-native network functions, ensuring that security is a dynamic, automated component of the network rather than a static bolt-on.

4. Subex: HyperSense AI-First FMS

CEO: Nisha Dutt
Founded: 1994
Location: Bangalore, India

Subex has pioneered the transition from manual revenue assurance to AI-first automated fraud management.

Their HyperSense platform automates the detection of revenue leaks and fraudulent activities across voice, data and digital services.

By utilising machine learning to identify hidden patterns, Subex provides automated, proactive alerts that allow operators to intervene before losses escalate.

Their focus on closed-loop automation, which means the system can autonomously initiate remedial actions, makes them an essential partner for carriers managing the complexity of diverse IoT ecosystems.

3. Ericsson (Vonage): Global Communications Platform

CEO: Börje Ekholm
Founded: 1876
Location: Stockholm, Sweden

Ericsson, bolstered by its Vonage acquisition, is a leader in automating the exposure of network-based authentication tools.

Their Global Communications Platform allows for the automated verification of SIM cards and device locations via standardised APIs. This shifts fraud detection from a reactive check to a proactive, automated network validation process.

By enabling developers to integrate these network-level automations directly into their applications, Ericsson is helping to eliminate vulnerable SMS-based OTPs, replacing them with a more secure, automated experience.

2. Mobileum: Active Intelligence (RAID)

CEO: Mike Salfity
Founded: 2001
Location: Silicon Valley, US

Mobileum’s RAID platform is a powerhouse of automated active intelligence, providing end-to-end protection across the entire subscriber lifecycle.

The company leads in automating roaming fraud detection and revenue assurance through advanced machine learning models that adapt to new threats without manual retraining.

Its automated "Investigative Agents" can trace complex fraud rings across international borders, identifying the root cause of revenue leaks in minutes rather than days.

By automating the auditing of trillions of network events, Mobileum ensures that operators can maximise their ROI on 5G infrastructure while maintaining a secure environment, saving billions of dollars globally.

1. Syntelligence AI: Security Shield & Trust Platform

CEO: Prateek Choudhary
Founded: 2025
Location: London, UK

Syntelligence AI, backed by Deutsche Telekom, e&, Singtel, SK Telecom and Softbank, is a major force in automated network protection.

By training on vast, anonymised data pools from five global Tier-1 carriers, the "Security Shield" platform identifies emerging fraud patterns with unmatched precision. It automates the detection of deepfake audio and identity theft at signalling level, stopping attacks before they reach the telco.

This collaborative approach allows the network to learn from global threats in real time, creating an autonomous, self-healing perimeter. It represents the transition from reactive security to a truly intelligent, automated infrastructure that defines the 2026 cybersecurity landscape.